[ovirt-users] Ovirt 3.6.1 unable to manually start hosted engine vm

[Roy Golan]

On Mon, Jan 4, 2016 at 1:37 PM, Stefano Danzi <s.danzi at hawai.it> wrote:

>
>
> Il 04/01/2016 12.28, Gianluca Cecchi ha scritto:
>
> On Mon, Jan 4, 2016 at 12:20 PM, Roy Golan <rgolan at redhat.com> wrote:
>
>>
>>
>>
>>>
>>> On Mon, Jan 4, 2016 at 1:08 PM, Stefano Danzi < <s.danzi at hawai.it>
>>> s.danzi at hawai.it> wrote:
>>>
>>>> Hi !
>>>> After upgrade from ovirt 3.5 to 3.6 I'm not able to manually start
>>>> hosted-engine vm using "hosted-engine --vm-start"
>>>>
>>>> I have only one host.
>>>> I put engine in global maintenance mode, I shutdown all VM and hosted
>>>> engine VM.
>>>> I reboot the host and run "hosted-engine --vm-start", but the VM never
>>>> start (I waited for 10 minutes).
>>>> When I run " hosted-engine --set-maintenance --mode=none" engine VM
>>>> start immediately.
>>>>
>>>>
>>>
>>
>> Sorry I was quick to answer and now I saw you already tried and it
>> immediately started the vm.
>>
>>
>>
>
> Possibly the original question was of different kind?
> So how to manually start engine VM if environment is in global maintenance
> and I have previously shutdown it? Should it be possible?
> For example one wants to check it from an OS point of view and not oVirt
> point of view, before exiting maintenance...
>
> Gianluca
>
>
> Gianluca you are right!!!
> ovirt 3.5 permit to start engine VM when cluster is in maintenance... I did it many times!!! From oVirt 3.6 it is no longer possible.
> VM remain in state "WaitingForLaunch" until cluster exit from maintenance.
>
>
>
>
>
in 3.6 maintenance means we can't run the vm. Running it means we needs its
disks available, meaning we need the domain up and monitored and with a
sanlock monitoring it. We can't
achieve maintenance action like yum update of sanlock, vdsm, agent , if the
the whole system is up.

Simone, Martin any additions?
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